Spinning apparatus for working articles



April 3, 1951 G. BONNETT ET AL SPINNING APPARATUS FOR WORKING ARTICLES 3 Sheets-Sheet 1 r IIII III Il... lllr' I I l lll( #Www lllll l..

llllll 1| wldl Il||| April 3, 1951 G. BONNETT ET AL SPINNING APPARATUS FOR WORKING ARTICLES 3 Sheets-Sheet 2 Filed Dec.

N GFK /NVEN TOR 6. BONNE 77' MA. RAYBUR/V 2C R085 ON A TTORNEV April 3, 1951 G. BONNETT ET AL SPINNING APPARATES FOR WAORKIN@ ARTICLES 5 Sheets-Sheet 3 Filed Dec. 5, 1946 Patented Apr. 3, V14.9511

SPINNING APPARATUS FOR WORKING ARTICLES Gerson Bennett, Vincent A. Rayburn, and Duer C. Robson, Baltimore, Md., assignors to Western Electric Company, Incorporated, New York, N. Y., a corporation of New York Application December 3, 1946, Serial No. 713,780

3 Claims. (Cl. 113-52) This invention relates to spinning apparatus for working articles, and more particularly to apparatus for straightening spool heads.

In the use of metal spools for storing, conveying and supplying Wire, or the like, the heads of the spools sometimes weaken and flare out.

`Spools having bent heads are difficult to handle An apparatus illustrative of the invention includes a holder anvil for supporting a spool having a bent head. The holder may be moved toward a spinning head to move the bent spool l head into contact with forming elements of the spinning head, and means are provided for revolving the spool with respect to the spinning head so that all portions of the bent spool head are contacted and straightened by the forming elements of the spinning head. The anvil holder is provided with a curved face for supporting the bent spool head, and the forming elements are mounted for floating movement to insure suicient pressure between the forming elements and any portion of the spool head to straighten the head. In straightening a bent spool head, the spinning head also cold works the head to stiffen it.

A complete understanding of the invention may be obtained from the following detailed description of an apparatus forming a specific embodiment thereof, when read in conjunction with the appended drawings, in which:

Fig. 1 is a fragmentary, top plan view of an apparatus constituting one embodiment of the invention;

Fig. 2 is an enlarged, fragmentary, front elevation of the apparatus with portions thereof shown in section;

Fig. 3 is a fragmentary, vertical section taken along line 3-3 of Fig. 1, and

, Fig. 4 is a fragmentary, vertical view taken along line 4 4 of Fig. 2.

. Referring now in detail to the drawings, there is shown therein an apparatus for straightening and cold working spool heads lo and il fastened to a drum l2 of a metal spool i5. An anvil block i6 hinged to an anvil block Il by a pintle 26 has a semicylindrical groove 2l, which is complementary to a semicylindrical groove 22 formed in an anvil block il. The semicylindrical grooves 2i and 22 are sufficiently large to receive the drum l2 of the spool l5 therein. When the anvil block i6 is closed upon the anvil block i l, the two anvil blocks serve to clamp the spool i5 against rotation therebetween and are positioned between the spool heads lll and Il. The anvil blocks I6 and I1 are provided with convex backing faces 25 and 26, which limit movement ofthe spool head l toward the right, as viewed in Fig. 2. That is, the anvil faces prevent the spool head l0 from being bent in too far.

The anvil block l'l is provided with lugs 30-3 and 3|-3I (Figs. 1 and 3) and matched eccentric cams -35 pinned to a shaft 36 are mounted rotatably in bores 31-31 formed in the lugs Sli-3S. The shaft 36 is mounted in bearings 40-46 fastened to a carriage 39, and has keyed thereto a bevelled gear lll, which meshes with a bevelled gear 42 keyed to a shaft 43 mounted in bearings dll-44, which are also fastened to the carriage 39. The bearings Hl-46 and bearings 48-48 identical therewith prevent movement of the anvil block I1 vto the right or left, as viewed in Fig. l, relative to the carriage. Matched eccentric cams l5-45 pinned to a shaft 46 are mounted rotatably in bores :tl- 41 formed in the lugs 3I-3l. The shaft t6 is mounted rotatably in the bearings A38-'48, which prevent movement of the lugs 3I-3I to the right or left, as viewed in Fig. 1.

A bevelled gear 5i) fastened rigidly to the shaft llt meshes with a bevelled gear 5l keyed to the shaft 43. Hence, when the shaft 36 is rotated, the eccentric cams 35-35 are rotated and the eccentric cams 45-45 are rotated through the gears 4| and 42, the shaft 43, the gears 5l and and the shaft 46. The cams 35-35 are oriented identically angularly with respect to the shaft 36, and the cams 45-45 are fixed to the shaft 45 in angular orientation identical" with that of the cams 35-35 with respect to the shaft 355. Also, when the shaft 36 is rotated, the shaft it is rotated in the same direction as and at the same rate of speed as the shaft 35. Hence, when the cams 35-35 and 45--45 are rotated, they revolve the anvil blocks I 6 and I l.

A dovetail guide member 55 rigidly secured to the carriage 39 is slidable in a dovetail groove 56 formed in a base 51. A rod 60 secured adjustably to clevises 6I and 62 forms a link of a toggle 63. The clevis SI is pivotally secured to the carriage Sii,V and the clevis E52 is secured to the link 65 of .the toggle. The link 65is secured pivotally to the base 51 by a pin 66, and is connected rigidly to a crank arm 61 having a grip 58 thereon. When the arm 61 is turned in a clockwise direction, as viewed in Fig. 1,' the carriage 39 is moved by the toggle 63 to the left. Upon suflicient movement of the arm 61, the flange I of the reel I5 is moved into engagement with crowned forming rollers 69-69, which are secured to ends 1li-1D of a yoke or spider 1i: The yoke is mounted fioatingly in a slot 12 in a guard 13 of a spinning head 14. A transverse pin 15 secures the yoke 1I pivotally to "thespinning head, and the slot 12 is large enough to permit the yoke and the rollers carried thereby to oat with Arespect to the guard of the spinning head. The slot 12 also serves to limit pivotal movement of the yoke with respect to the rotatable head 14. lThe rollers have axles which are directed radially with respect to the spinning head and transversely to the pin 15, and are free to rotate with respect to the yoke and have portionsextending beyond the front face of the guard. l

The guard 1 3 of the spinning head 14 is fixed upon a shaft 16 (Fig. l) carried by a thrust bearing 11. A pulley 18, secured to the shaft 16, which is driven at a high rate of speed by an electric motor 19, drives a pulley 8B through a z belt 8|, The pulley El) drives a gear box 8,2, which drives'a driving clutch member 85. When the carriage 3,9 is moved toward the spinning head 12, a driven clutch member 85 splinedY to and slidable on the shaft 36 moves into engagement with the driving clutchmember 85. A compression spring g5, which is positioned between the driven clutch member v8&3 anda'collar Sii fastened rigidly to the shaftV 36, urges the driven clutch member 85 -to the left, as viewed in Fig. 1,

butrpermits the driven clutch member 8 6 to be moved to the right against the action of the compressionspring.

When the driven clutch member 8 6 is moved into engagement with the driving clutch member 85 as the carriage 35 is moved toward the spinning head 12 to press the spool head IQ against the rollers (iS-59, thereby forcing against the anvil blocks l5 and I1 the portions of the spool head I contacted by .the rollers, the driving clutch member rotates the shaft 36 through the driven clutch member 85. rIfhe shaft rotates the eccentric cams 35-35, and the eccentric cams IE5-45 are rotated through thev bevelled gears 4I and 42, the shaft 43, bevelled gears 5I) and 5I, and the shaft 46. As the cams 35-35* and -45 rotate, they revolve the anvil blocks IS and I1 around the axis of rotation of the spinning head 1li. That is, the anvil blocks and the spool carried thereby are moved transversely with respect to the axis of rotation of the sliinning head, so that the rollers 69--69 contact all po-rtions of the head Iibetween arimY 95 ofthe spool head I!) and the drum I2.

The spinning head rotates at a high rate of speed so that it cold works the spool head.V The yoke 1| floats so that the rollers vGil--SS contact the head ID with equal forces and press'the contacted portions of the head Ill'against'theconvex backing faces 25 andv 26 atall' times regardless.,

of alignment or non-alignment of the spool head I with respect to the spinning head 14. Also, the crowned rollers have line contacts with the spool head It at all times regardless of any possible angular position of the yoke with respect to the spool head point so'that there are no point contacts therewith. rihe rollers press the spool head I0 incrementally against the convex backing faces 25 and 2B of the anvil blocks I6 and I1, respectively, so that all portions of the head I0 are rolled straight.

ArThe spinning head 1Q is rotated at a relatively high rate of speed while the anvil blocks I6 and I1 are revolved around the axis of the rotation of the spinning head at a relatively slow rate of speedgwhich relative rates of speed insure that all portions of the spool head ID between the drumV I2 and the rim S5 of the spool head are rolled by the ro-llers. The rollers straighten the spool head incrementally and the curvature of theconvex backing faces 25 and 26 is such that each deformed portion of the spool head I@ will be bent beyond its elastic limit sufficiently to make the spool head planar, regardless of the distance from the drum that the deformed portion may be. The rollers also cold work the spool head I to strengthen it. Thus, the apparatus not only straightens the spool head but strengthens it as well by the cold working, i. e. by the spinning.

In t1 e operation of the apparatus described hereinabove, the spool I5 is placed in the anvil blocks I6 and I1, and is clamped against rotation thereby. The spinningv head 14 is rotated at a relatively high rate of; speed, andthe carriage 3S is moved by the toggle 53 to the left, as viewed in Fig. l, which moves the driven clutch member S5 into engagement with the driving clutch member B5 so that the anvil blocks I5, and Iland the spool i5 are revolved about the axis ofrotation of the spinning head at a relatively low rate of speed. The carriage 3,5 is moved further tothe left to urge the spool head4 i@ against the rollers (i5-S9 and is urged by the toggle constantly toward the spinning head With-sufcient force to press the portions of the spool head I contacted by the rollers tightly against the backing faces 25 andZS of the anvil blocks.

rlhe rollers iis-5s press all portions of the head I0 against the annularrconvex backingfacesv 2.5 and 2t of the anvil-,blocks I5 and- I,1`.- rlhis bends the bent vportions of thehead It sufficiently beyond their elastic limitsY so thatV thy are straightened, The curvature,V of the Vconvex vfaces 25 and 2Sy is such that each increment= of'v the spool head id between the j drum 'and the rim hfef' iS belli the. 'Seme degreebeyond. a straightened position, thereof sotl'iatuit,V will be planar when the force thereon is released.

As one of the'rollers'A vgengages the outer portion of the head Iii, itV presses that portion againstv the portion of the anvil. holderi behindl that portion of' the head, which is,r rolledbjeyo'nd its elastic limit if this Vportion is bent. Ths'fother roller simultaneously engages the portion' of, the head la near the drum l2'and the yoke iioatsto a position in which both of the rollers 'press the.

spool head against the, backing'faces 25 audit. The degree that the outer portion of the head .I0

is bent beyond its elastic limit'isthe san/leas` that ton which the portion of` the spoolhead I9 adjacent to the drum i2, is blentwhen' this'latter portion of'the head is. engaged 'by one ofthe rollers and is pressed against' the inner'por'tion of# the one `of 1 backing fa'cesgj 5i. and .2 gbehiridit.

After the head it or" the spool l5 has been straightened, the toggle z53 may be actuated to move the carriage 3S away from the spinning head 'M and the anvil blocks i6 and li may be opened so that the spoel i5 may be removed therefrom. The head il then may be straightened and strengthened in a similar manner, if necessary, after reversing the spool in the anvil blocks. rl'he driven clutch member is is moved out of engagement with the driving clutch member 85 when the carriage 353 is moved to a position for unloading and loading a spool in the anvil blocks i6 and i7 so that the anvil blocks I6 and I7 are not revolved during the unloading and loading steps, whereby these steps are facilitated.

The apparatus described hereinabove serves to straighten the portions bent spool heads between the rims of t'ie hee ds and the drum of the spool so that the spool heads are completely and incrementally straightened The apparatus cold Works the spool heads as well as straigl'ztening them, thereby strengthening the heads to prolong their useful service. The apparatus also may he used to cold work sp-ool heads which not bent or deformed if strengthening of unbent spool heads is needed.

What is claimed is:

1. An apparatus for straightening heads of metal spools, which comprises a spinning head rotatable about a predetermined axis and including a forming element carried laterally of the axis of rotation thereof, means for rotating the spinning head at a relatively high rate of speed, a carriage movable toward and away from the spinning head in a direction parallel with the axis of rotation of the spinning head, a holder carried by the carriage for holding a spool in a position in which the axis of a drum portion of the spool is parallel with the axis of rotation of the spinning head, said holder being provided with a curved backing face for supporting a head of the spo-ol, at least one eccentric cam for supporting the holder on the carriage and for revolving the holder around the axis of rotation of the spinning head when the cam rotated, and means for rotating the eccentric cam when the carriage is moved toward the spinning head.

2. An apparatus forv straightening heads of spools, which comprises a disc rotatable about a predetermined axis, a plurality of rollers carried by the disc in positions in which they are offset from the axis of rotation of the disc and in which axes the rotation of the rollers are substantially radial with. respect to the disc, a carriage movable toward and away from the disc along a line parallel with the axis of rotation of the disc, a

toggle joint linkage for moving the carriage toward and away from the disc, a plurality of matched eccentric earns mounted on the carriage, an anvil carried by the eccentric cams for holding a reel in position in which the axis of the reel is parallel with the axis of rotation of the disc, means including a shaft extending parallel to the axis of rotation of the disc for rotating the eccentric cams in synchronization to revolve the anvil around the axis of the rotation of the disc when the shaft is rotated, means for rotating the disc, means for driving the disc-rotating means, a driving clut i member driven by the driving nie-ans and positioned in alignment with the shaft, a driven clutch member slidablyfmounted on the end of the shaft for engaging the driving clutch member, and means Ifor urging the driven clutch member toward the driving clutch member.

8. An apparatus for cold Working articles, which comprises a holder for holding an article, said holder having a curved backing plate to support one side of an article held by the holder, a shaft juxtaposed to the backing plate at the other side of said article, means for rotating the shaft at ahigh rate of speed, a yoke mounted pivotally on an axis extending transversely to the shaft, a pair of spinning elements carried on radially extending axles on the ends of the yoke, said axles extending transversely of said yoke means for pressing said other side of the article and the spinning elements into engagement, and means for eifecting relative movement between the article and the spinning elements transverse to the axis of rotation of the shaft.

GERSON BONNETT. VINCENT A. RAYBURN. DUER C. ROBSON.

REF CITED The following references are of record in the file of this patent:

UNETED STATES PATENTS Number Name Date 541,382 Nachtigal June 18, 1895 603,095 Worth Apr. 26, 1898 603,098 Worth Apr. 26, 1898 810,431 Pfluge Jan. 23, 1906 928,618 Wilzin July 20, 1909 960,769 Armstrong June 7, 1910 1,452,113 Gould Apr. 17, 1923 1,751,085 Hopkins Mar. 18, 1930 2,272,111 Dove Feb. 2, 1942 2,308,512 Honian Jan. 19, 1943 2,345,177 Briney Mar. 28, 1944 

